| 摘要 |
Methods and systems may be provided simulating forming a wide variety of directional wellbores including wellbores with variable tilt rates and/or re latively constant tilt rates. The methods and systems may also be used to si mulate forming a wellbore in subterranean formations having a combination of soft, medium and hard formation materials, multiple layers of formation mat erials and relatively hard stringers disposed throughout one or more layers of formation material. Values of bit walk rate from such simulations may be used to design and/or select drilling equipment for use in forming a directi onal wellbore.
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